/**
 * Copyright 2011 Renato de Jesus Manzoni
 * 
 * SED - Software Engineering and Dependability Research Group
 * 
 *     http://www.sed.ic.unicamp.br/
 * 
 * Distributed Systems Laboratory (LSD) in the Institute of Computing (IC) at University of Campinas (UNICAMP)
 * 
 *     http://www.lsd.ic.unicamp.br/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package br.unicamp.ic.lsd.wscaa.interceptors;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.cxf.binding.soap.SoapMessage;
import org.apache.cxf.binding.soap.interceptor.AbstractSoapInterceptor;
import org.apache.cxf.binding.soap.interceptor.Soap11FaultInInterceptor;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.phase.Phase;

import br.unicamp.ic.lsd.wscaa.WebService;
import br.unicamp.ic.lsd.wscaa.exception.WSDynamicException;
import br.unicamp.ic.lsd.wscaa.factories.WSExceptionFactory;
import br.unicamp.ic.lsd.wscaa.model.ExceptionDispatcher;

/**
 * @author Renato de Jesus Manzoni <rjmanzoni@gmail.com>
 *
 */
public class WSFaultSoapInterceptor extends AbstractSoapInterceptor {

	private ExceptionDispatcher handler;
	
	private static Log logger = LogFactory.getLog(WebService.class);
	
	/**
	 * @param p
	 */
	public WSFaultSoapInterceptor() {
		super(Phase.UNMARSHAL);
		getAfter().add(Soap11FaultInInterceptor.class.getName());
	}

	/**
	 * @param i
	 * @param p
	 */
	public WSFaultSoapInterceptor(String i, String p) {
		super(i, p);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.apache.cxf.interceptor.Interceptor#handleMessage(org.apache.cxf.message
	 * .Message)
	 */
	
	public void setHandler(ExceptionDispatcher handler){
		this.handler = handler;
	}
	
	@Override
	public void handleMessage(SoapMessage message) throws Fault {
		Fault fault = (Fault) message.getContent(Exception.class);
		// TODO pode ser a excecao ou a mensagem dela!
		
		String exceptionString = fault.getDetail().getFirstChild().getLocalName();
		
		logger.debug("The exception throwed by the invokation is: "
				+ exceptionString);
		
		WSDynamicException e = WSExceptionFactory.createException(exceptionString);
		
		if(handler != null)
			handler.dispatchException(e);
		else
			logger.debug("There is no handler to this exception: "+exceptionString);
	}

}
